Voip Buisness
Uncategorized October 20th. 2010, 2:24pmVoip Buisness
 |
 3COM 1102 NBX IP VOIP BUISNESS PHONE 655000803 30 AVAILABLE  US $39.99
|
 Lot of 5 3COM 1102PE 1102 NBX IP VOIP BUISNESS PHONE US $250.00
|
 3COM 1102 NBX IP VOIP BUISNESS PHONE 655000803 US $40.00
|
 3COM 1102 NBX IP VOIP BUISNESS PHONE WHITE US $54.00
|
 3COM 1102 NBX IP VOIP BUISNESS PHONE 655000803 US $24.99
|
LeGeminio-A 5linx-INDEPENDENT REPRESENATIVE-SAVE ON ALL COMMUNICATION&ENERGY SERVICE
How to Make Decision Between Analog Vs Digital Ip Video Surveillance
Analog cameras turn the video signal into a format that can be received by a television or other receiver such as a VCR or monitor. An IP-based camera, also known as an IP network camera, digitizes the video signal using a specialized encoder that contains an onboard web server.
This allows the IP camera to act as a network device, thus allowing captured video images to be viewed not only through an existing network but also through a web browser that can be accessed through the Internet.
IP camera is connected to lan segment of your network(home or buisness),and transmits video signal over network.Analog camera is connected via coax cable to dvr or dvr card in your pc.
Main difference between analog vs digital is resolution of the picture because analog use max 0,3mpix,but ip cameras start from 0,3mpix - 1mpix-2mpix etc..
Picture by ip camera with 2mpix sensor if far better then best analog camera with 0,3mpix.
This is the first reason to choose ip, if you want clear picture with lots of details.
IP-based systems have the added benefit of being able to use switches, hubs, and routers that allow the Cat-5 network to be expanded to much broader ranges.
IP cameras offer the following features that analog cameras do not:
2 way data/audio - the device can send and receive information to almost any digital device. This allows users to communicate what they are seeing (e.g. Petrol station clerk assisting a customer on how to use the prepay pumps), or warn off perpetrators via the camera's speakers.
High Resolution - as with digital still cameras, the resolution of IP cameras is superior to analog cameras and is increasing. There is no cap or restriction on resolution, as is the case with CCTV cameras which are restricted by the PAL/NTSC standards.
Smart phone - some, but not all, IP cameras have built-in VoIP function enabling the device to send and receive phone calls based on events, allowing voice and video interaction via a smart phone (e.g. iPhone).
The following are some of the potential weaknesses of IP systems in comparison to analog CCTV cameras.
Higher initial cost per camera
Potentially high network bandwidth requirements due to the higher image quality: a typical IP camera with resolution of 640x480 pixels and 10 frames per second (10 frame/s) in MJPEG mode requires about 3 Mbit/s[11]. Although newer codecs offer much lower bandwidth; H.264 on average requires 5-6x less bandwidth than MJPEG. Additionally, this can easily be offset by correct utilization of the analytic and event based triggers
About the Author
Sasa Obradovic
IP portal dedicated to safety systems, video surveillance, IP video surveillance.
At http://www.ipkamere.org you can find a lot of useful information related to video surveillance, technical descriptions of IP cameras.
How do you use VOIP with just a headset?
Ok so I just got a job where I have to use a phone to call people in my area code to set appointments for a buisness but all I have is a cell phone. so I want to do the cheapest thing possible to make these calls. So do I just need a headset to connect to my PC for VOIP? I dont have a phone line but I do have high speed internet, cable modem. It would just be calls in my area. Can someone tell me how this works and how to do it.
VoIP isn't "free" if your calling to normal telephones.
VoIP to VoIP calls are free through services like Skype. But if you want to call someone on a normal telephone service then you need to pay a per call connection fee.
Skype provides a software based phone, so yes all you would need is a headset with microphone. Headset with mic works better than a microphone and speakers because you get feedback from the speakers back into the mic.
Other suggestion - don't skimp on the headset. I found a world of difference between the $20 cheapo headsets and an $80 Plantronics headset.
You might be better off with a service like vonage. Flat rate, connects to your broadband service, uses a regular telephone set connected to their router. Works just like a regular telephone.
